Knitting-machine.



No. 759,021. PATBNTED MAY 3, 1904.

G. W. RUTH. KNITTING MACHINE.

APPLIGATIJN FILED JUNE 25. 1903.

PATENTED MAY 3, 1904.

G. W. RUTH. KNITTING MACHINE.

APPLIOATION FILED JUNE 25, 1903.

5 SHEETS-SHEET -63.

H0 MODEL.

guugwto'r 'No. 759,021. PA'TBNTED MAY el, 1904. G. w. RUTH. KNITTINGMACHINE.

APPLICATION FILED JUNE 25. 1903.

NO MODEL. 7 5 SHEETS-BESSIE.

iTn STATES Patented May 3, 1904. I

PATENT Orrlca.

GEORGE WV. RUTH, OF YORK, PENNSYLVANIA, ASSIGNOR TO RUTH AUTOMATICKNITTING MACHINE COMPANY, A CORPORATION OF DELAlVARE.

KNITTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 7 59,021, dated May 3,1904:.

Application filed June 25, 1903. Serial No. 168,090. (No model.)

To all 'lb'il/lflib it may concern:

Be it known that l, GEORGE 1V. RUTH, aeitizen of the United States,residing at York, in the county of York and State of Pennsylvania, haveinvented a new and useful Improvement n Knitting-lVlachines, of whichthe following is a specification.

My invention relates to knitting-machines.

it consists of devices for automatically throwing off the power and forapplying a brake when the thread breaks or is obstructed.

It further consists of manual means for relieving the brake, returningthe shifter, and resetting the automatic devices.

It further consists of means for releasing the yarn, so as to giveincreased slack when the machine stopped.

It further consists of devices for facilitating the threading of themachine.

It further consists of other novel features of construction, all as willbe hereinafter fully set forth.

Figures 1 and 2 represent, respectively,

front and side elevations of my device, portions being omitted in eachfigure for the sake of clear illustration. Fig. 3 represents a sectionthrough the line a a, Fig. 1, the cops being removed. Fig. i, on alarger scale, and 5 and 6 represent partial elevations of a yard-guidearm and adjacent parts. Figs. 7 and 8, enlarged, represent alateralyarn-guide in different position. Figs. 9, 10, and 11, enlarged, andFig. 12 represent a portion of the yarn-comb and connected parts. Fig.13 represents a plan through the line b .7), Fig. 2. Fig. 14: representsa section through the line 0 (a, Fig. 3. Fig. 15 represents a sectionthrough the line (Z (Z. Fig. 3, enlarged. Figs. 16 to 19, enlarged,represent parts of the belt-shifting mechanism.

Similar numerals of reference indicate corrcspondingparts in thefigures.

plate 7, is provided with a notch 8, and carries near its upper end ahead or nut 9. At the upper end of the rod 4 is a bracket 10, having apair of forwardly and upwardly extending lugs 11. Pivoted to the sidesof the bracket are plates 12, the lower ends of which are connected bysprings 13 to an adjustable collar 14: on the rod. 1. 111 a bearing ineach of the plates 12 a yarn-guide arm 16 is free to rotate. The arm 16causes at its free end a yarn-guide hook l7 and has near its inner end alug 18, held in engagement with the lug 11 by means of a spring 19.Projecting laterally from the bracket 10 are wings 20, at the free endsof which are downwardly and outwardly opening notches 21. Pivoted oneach of the wings 20 is a plate 22, the outer end of which has a tongue23. A spring 24 connects each of the plates 22 and 12 and serves to holdthe tongue 23 adjacent the notch 21, with which it coacts to form aneye. On the plate 7 is supported a bolt 25, actuated by a spring 26 andengageable with the notch 8 in the drop-rod 6. The bolt has lateralshoulders 27 and a cam-surface 28. Engageable with the latter are twovertical movable rods 29, carrying vertically-adjustable collars 30, thefeet of the rods passing through a guide in the plate 7. The upper endsof the rods 29 are guided in the bracket 10 and provided with lateralpins 31, engaging teeth 32 in the plates 12. Engaging the shoulders 27of the bolt 25 are levers 33, pivoted .at 34 in lateral arms 35 of theplate 7 and. having a jaw 36 at their free ends. At the extremity ofeach arm 35 is a stationary comb 37, having teeth 38, intermeshing withwhich are the teeth 39 of the pivoted comb 10, the lug 41 of whichengages with the jaw 36. A stop 42 (shown in Fig. 12) limits themovement of the comb 40. A slot 13 in the arm 35 has projecting acrossit a pin 4: 1.

Supported beneath the bracket 3 is a lever d5, pivoted at 16, normallyupheld by a spring 17 and having a strike-plate 18 in the path of therod 6. A dog 19 0n the lever 45 engages a notch in a spring-actuatedbolt 51, the free end of which is in the path of a brakelever 52, acollar 53 on the bolt being in the path of a spring-actuated lever 54:,secured to a cam 55, contacting with the plate 1. Adjacent the verticalpivot 56 of the lever 54 and cam 55 is an aperture 57 in the plate 1,through which passes a rod 58, extending downward to contact with aspring-supported lever 59. On the lever 59 is a dog 60, engaging in anotch 61 in a spring-actuated shift ing rod 62, which carries a fork 63,embracing a belt 64 on the tight and loose pulleys 65 66. On the lever52 is a brake-shoe 67, adapted to contact with the side of the pulley65.

A hand-lever 68, pivoted to the bracket 3, has a foot 69, adapted tocontact with a collar 70 on the bolt 51, and an arm 71, contacting witha collar 72 near the foot of the rod 6.

The operation is as follows: Presuming that the machine is running andthreaded, as is shown in Figs. 1 and 2, it is evident that either whatis called a tight bobbin or of a knot or like obstruction in the yarn73, catching in the slot 4L3 or the notch 21, will draw down the yarnguide arm 16. This through the action of the lug 18 on the lug 11 willrotate the arm and release the yarn from the hook 17, as shown in Fig.6. At the same time the plate 12 will tilt the heel of the plate 22 andtake the tongue 23 out of relation to the notch 21 in the wing 20, againreleasing the yarn 73, as shown in Figs. 7 and 8. In this way all theslack yarn from the comb 37 may be knitted up without breaking. In themeantime the tooth 32 of the plate 12 has released the pin 31 andpermitted the rod 29 to percussively engage the cam 28 of the bolt 25,thus releasing the drop-rod 6. This falls upon the strike-plate 48,(side Figs. 3 and 14,) depresses the detent-lever 15, and disengages thedog 49 from the notch 50 in the bolt 51. The collar 53 on the bolt,acting through the lever 54, turns the cam 55 to depress the rod 58.(Vida Figs. 12 and 15.) This in turn depresses the lever 49 and unlocksthe dog from the notch 61 of the shifting rod 62, whereby the belt 64:is thrown onto the loose pulley66. (Vida Figs 17 to 19, inclusive.) Thebrake-lever 58 has already been forced by the bolt 51 against the sideof the tight pulley 65, (tide Fig. 3,) so that the machine stops veryquickly and before the slack yarn has been exhausted. If a yarn breaks,it is evident that the lug 11 of the comb portion LO will through thelever 38 (ride Fig. 13) force back the bolt 25 and, as before, shift thebelt and quickly brake the machine. In rethreading the machine the yarnis first slipped into the notch 13 (wide Figs. 10 and 11) and behind thepin 14. The pin acts to hold the yarn in the notch while operator israising the pivoted comb 40 and engaging the yarn therewith. This whileapparently a small matter is, in fact, a means of saving a great deal ofvexation and loss of time 1n threading j a knitter. l

After the machine is rethreaded the operator through the foot 69 of thehandlever 68 throws back the bolt 51, thereby releasing the brake-shoe67 from the pulley and permitting the spring on the shaft 61 to i returnthe belt 6 1 to the tight pulley 65. The same movement of the lever 68,by means of the contact of the arm 71 with the collar 7 2 on thedrop-rod 6, raises the rod. so that the bolt 25 engages in its notch 8.The head 9, acting through the collars 30, lifts the rods 29, so thattheir pins 31 engage the teeth 32in the plate 12. The machine will thencontinue to run until a new obstruction or break 1 again simultaneouslyreleases the yarn-slacking, belt-shifting, and braking devices.

When in the claims I designate the beltshifting, brake, and otherportions of my device as spring-actuated, it is evident that I purposeto include the well-known mechanical equivalent of a moving weight.

It will be evident that various changes may be made by those skilled inthe art which Will come within the scope of my invention, and 1 do not,therefore, desire to be limited in every instance to the exactconstruction herein shown and described.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a stop-motion, a belt-shifter, abrake, a bolt adapted to renderoperative said shifter and said brake, a detent-lever normally engagedwith said bolt, a drop-rod adapted to strike said detent-lever and ahand-lever having a foot engageable to return said bolt and an armadapted to lift said rod.

2. In a knitting-machine a yarn-guide arm axially rotatable in a pivotedsupport.

3. In a knitting-machine, ayarn-guide arm axially rotatable in a pivotedsupport and means for partially rotating said arm as it is turned onsuch pivot.

1. In a knitting-machine, a pivotally-mounted yarn-guide-arm support, ayarn-guide arm rotatable in said support independently of its pivotalmovement, yarn-supporting means on said arm and means operative byincreased tension on the yarn for disengaging it from said supportingmeans.

5. In a knitting-machine, a yarn-guide arm axially rotatable in apivoted support, a yarnengaging hook at the free end of said arm andmeans for disengaging the yarn from said hook when said arm is turned onsuch pivot.

6. In a knitting-machine, a pivotally-mounted yarnguide-arm support, ayarn-guide arm rotatable in said support independently of its pivotalmovement, a yarn-engaging hook at the free end of said arm and means forrotating said arm when it is turned on its pivot whereby the yarn isdisengaged from said hook.

7. In a knitting-machine, a pivoted plate, a yarn-guide arm rotatablysupported in said plate and a 111g on said arm coasting with a.independent of said yarn-engaging eye for moving saidpivotally-supported part under an increased tension of the yarn wherebysaid portions are separated and the yarn disengaged therefrom.

9. A knitting-machine having'a yarn-gui tle arm axially rotatable in apivoted support and a two-part yarn-supporting portion both operative todisengage the yarn under increased tension thereon.

( GEORGE W. RUTH.

Witnesses:

JOHN A. IED'ERSI-IEIM, C. D. MGVAY.

